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Full text of "IS 4003-2: Pipe Wrenches, Part 2: Heavy Duty"

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IS 4003-2 (1986): Pipe Wrenches, Part 2: Heavy Duty [PGD 5: 
Assembly Hand Tools] 




Jawaharlal Nehru 
'Step Out From the Old to the New" 



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PROTECTED BY COPYRIGHT 



UDC62V883'6 



First Reprint DECEMBER 1996 
( Incorporating Amondmant No. 1 ) 



IS : 4003 (Part 2) - 1986 



Indian Standard 

SPECIFICATION FOR PIPE WRENCHES 

PART 2 HEAVY DUTY 

( First Revision ) 



1. Scope — Covers the dimensions and other requirements for heavy duty pipe wrenches. 

2. Terminology — For the purpose of this standard, the following definition in addition to those 
given in IS : 4003 ( Part 1 )-1 978 'Specification for pipe wrenches: Part 1 General purpose 
( first revision )' shall apply. 

2.1 l\/laximum Capacity — Maximum diameter of pipe that shall be gripped with*" safety, when the end 
of the movable jaw flushes with back face of the adjusting nut. 

3. Dimensions — Shall be as given in Table 1. 

4. Material — Suitable materials meeting with the requirements laid down in 5 and 11. 



Suitable Examples: 
Component 
Handle 



Springs 



Movable and Heel Jaw 
Adjusting Nut and Pin 

5. Hardness 

Component 
Movable and Heel Jaw 

Shank of Movable Jaw 
Adjustable Nut 

6. Manufacture 



Material 

Steel casting conforming IS : 2707-1982 'Carbon steel 
castings for surface hardening ( second revision )' 
malleable iron castings conforming 15:2108-1977 
'Black-heart malleable iron casting (first revision)' 
forging steel; SG iron castings conforming IS : 1865- 
1974 'Iron castings with spheroidal or nodular 
graphite { second revision)' or alluminium alloy 
meeting the requirements given at 11.1. 

Patented and cold drawn spring steel wires, unalloyed. 
Grades 1,2,3 and 4 to IS : 4454 ( Part 1 )-1 981 
'Steel wires for cold formed springs: Part 1 
Patented and cold drawn steel wires unalloyed 
( second revision )'. 

Forging steel. 

Suitable carbon steel selected from IS 
1979 'Carbon steels (unalloyed 
revision )' , 



1570 (Part 2)- 
steels ) ( first 



Hardness 

550 to 700 /y\/ when measured at any point within the 
triangular profile of any teeth. 

265 to 400 HV 

285 to 445 HV 



6.1 Handle — Handle shall be of malleable cast iron, steel castings, S.G. Iron aluminium alloy, forging 
steel or any other suitable material. Frame shall be integral part of the handle. It shall allow easy 
adjustment of the movable jaw allowing easy and proper operation of the wrench both forward and 
backward. 

6.2 Movable Jaw — Movable jaw shall be a one piece forging with integral teeth. Teeth shall be of 
adequate number, shape and size to enable the assembled tool to meet the test requirements without 
slipping and to grip positively during operation of tightening any appropriate diameter of pipe within 
the safe capacity. 



Adopted 14 July 1986 



O April 1996. BIS 



Gr 2 



BUREAU OF INDIAN STANDARDS 

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG 
NEW DELHI 110002 



IS: 4003 ( Part 2) -1986 

6.3 Heel Jaw — Teeth of the heel jaw shall be of adequate number, shape and size to enable the tool 
to meet the test requirement without slipping and to grip positively during operation of tightening 
any appropriate diameter of pipe within the safe capacity. Heel jaw shall be replaceable and attached 
to the handle with a suitable pin. 

6A Adjusting Nut — The adjusting nut shall be cylinderical, knurled and threaded integrally to 
engage the threads of the movable jaw. The threads shall be of sufficiently robust form and pitch so 
that with the jaws at any point of adjustment within the appropriate maximum capacity, the wrench 
shall be capable of passing the tests given in 11. 

6.6 Springs — Two springs shall be provided. Springs shall be so provided in wrench assembly as to 
balance properly the movable jaw so that action both in the forward and the backward direction shall 
be smooth. 

7. Workmanship and Finish — Heavy duty pipe wrenches shall be free from flaws, cracks, blow 
holes, rust, burrs and the other injurious defects. Movable jaws shall be properly finished. All 
unmachined surfaces shall be painted or suitably treated. The machined surfaces shall be protected 
by a rust preventive treatment. 

8. Operation — The motion between the various parts of the wrench shall permit the teeth to grip 
and hold the pipe for successive turns without the necessity of altering the adjusting nut. The heavy 
duty pipe wrenches shall release freely when the direction or pressure on the handle is reversed. 

9. Designation — A heavy duty pipe wrench of 900 mm nominal size shall be designated as follows: 

PIPE WRENCH H 900 IS : 4003 ( Part 2 ) 

10. Marking — Pipe wrenches shall be marked with the nominal size, manufacturer's name, initials 
and/or recognized trade-mark. 

10.1 Certification /\/tarking — Details available with the Bureau of Indian Standards. 

11. Tests 

11.1 Srar/c Z.oa(/ Tesr— A heavy duty pipe wrench shall be tested according to 13.1 of IS : 4003 
(Parti )-1978. The diameter of test bar. proof torque and the load position for testing the heavy 
duty pipe wrench shall be as given in Table 2. While applying torque, the length of handle shall not 
be increased by inserting hollow pipe onto the handle. The load shall be applied only at the position 
specified. 

12. Sampling — Refer IS : 4003 ( Part 1 )-1978. 

13. Packing — Each pipe wrench shall be suitably packed to avoid damage during transit. 



IS :4003( Part 2) -1986 



TABLE 1 DIMENSIONS FOR PIPE WRENCHES ( HEAVY DUTY ) 

( Cfause 3 ) 

All dimensions in millimetres. 




Nominal 
Size 

L 


Capacity D 


Jaw 
Thickness 

T 
Min 


Length 
of Mov- 
able Jaw 


Length 

of Handle 

fronfi Heel 

Jaw 

u 


Width of 
Nut 

N 
Min 


M/n 


Max 


200 
250 
350 
450 
600 
900 
1 200 


10 
10 
14 
27 
27 
38 
50 


38 
50 
63 
75 
90 
140 
165 


11 
14 
19 
25 
28 
31 
35 


95 
125 
160 
200 
240 
315 
420 


160 
200 
250 
370 
500 
730 
990 


11 
13-8 
150 
18 
240 
290 
350 



IS: 4003 ( Part 2) * 1986 



TABLE 2 TEST LOADS FOR PIPE WRENCHES ( HEAVY DUTY ) 

{Cfause 11.1 ) 



Nominal Size 
mm 


Diameter of Teat Bar 
mm 


Proof Torque 
N.m 


Load Position 

L 
mm 


200 


20 


360 


120 


250 


29 


880 


160 


350 


40 


1470 


220 


460 


60 


2 265 


330 


600 


75 


3 265 


450 


900 * 


100 


5 090 


700 


1200 


125 


6 890 


950 



EXPLANATORY NOTE 

This standard ( Part 2 ) was first issued in 1978 consequent upon the revision of the original 
version of the standard, in two parts. Part 1 of the standard deals with general purpose pipe wrenches, 
whereas Part 2 deals with heavy duty pipe wrenches. Heavy duty pipe wrenches are mostly used m 
oil exploration and mining work. 

This revision has been taken up in order to align the dimensions and torque values based on the 
prevalent practices followed in the industries. Alumiuiunn alloy handles which are lighter in weight 
have also been incorporated in the standard. 

While revising this standard, assistance has been taken from the data supplied by leading 
n^anufacturers of the product. 



Reprography Un«t, BIS. Now Delhi. \r.:^.